this is a fire hydrant valve leaking.. and we need to lap Lapping is the process of cleaning the control valve for maintenance purposes. The lapping is done with compounds that has roughness, ...
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@MultiMArky1410 ай бұрын
Nice kabaro, ask ko lang ano yung pinahid nyo na lubricant kanina ?
@marineengineerworks10 ай бұрын
lapping compound yun sir number 180 sir manipis para makoha yung mga crack sir..